From canopy to bedrock: a 3D critical zone dataset to advance ecohydrological research in the Weierbach Experimental Catchment, Luxembourg [* Cross-Reference *]

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Laurent Gourdol; Jérôme Juilleret; Núria Martínez‐Carreras; Christophe Hissler, 2026, "From canopy to bedrock: a 3D critical zone dataset to advance ecohydrological research in the Weierbach Experimental Catchment, Luxembourg [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.UIBH6Z, LIST Open Repository, V1
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Knowing the geometry and properties of the Critical Zone (CZ) from the treetops to the fresh bedrock in forested headwater catchments is essential. These characteristics play a key role in governing water movement and storage, the accessibility of nutrients and the energy fluxes that sustain forest ecosystems, regulate streamflow, and maintain downstream water quality and ecosystem functionality. Yet while the upper layers of the CZ are relatively accessible, the deeper regions, where many crucial processes take place, often remain difficult to reach. This study introduces a novel dataset from the forested Weierbach Experimental Catchment (WEC) in Luxembourg, providing a comprehensive 3D representation of the CZ architecture both above and below ground. Existing LiDAR and aerial photography data was leveraged to characterize the WEC topography, vegetation composition, and canopy height. Additional complementary data was acquired to decipher the WEC’s subsurface structure. This involved soil pit investigations, shallow and deep core drillings, borehole logging, hydraulic in-situ measurements, electrical resistivity tomography surveys, as well as the physical, optical and geochemical characterization of soil and rock samples. Our work demonstrates how the generated multi-method / multi-scale dataset enables detailed mapping of the key compartments constituting the WEC’s CZ, extending down to the unweathered bedrock. By delineating critical interfaces between these layers at the headwater catchment scale, this dataset lays a robust foundation to conceptualize and parameterize more realistic ecohydrological models aiming to elucidate how natural and anthropogenic changes affect forest ecosystem services. (2025-05-28)
***This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.3897/aca.8.e146950 for the original and latest version of the publication*** (2026-07-01)
Subject Agricultural Sciences; Arts and Humanities; Earth and Environmental Sciences; Medicine, Health and Life Sciences; Physics
Keyword Bedrock, Canopy, Ecohydrology, Drainage basin, Environmental science, Hydrology (agriculture), Geography, Geology, Physical geography, Earth science, Ecology, Ecosystem, Geomorphology, Biology, Cartography, Archaeology
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